- AMI approved
- Unequalled beauty
- Precise control of error
- Exact isolation of one quality
- Perfect interrelations
-23%150 years Montessori discount! The discount is already applied.
Using the Teen Boards, the child explores the numbers 11–19. Bead quantities are created from the 10 bars and colored bead stair in the Teen Bead Box and are associated with the corresponding numeral on the Teen Boards. Includes a wooden box with lid containing two Teen Boards and nine wooden cards.
|Minimum age||5 years|
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